TY - GEN
T1 - Feasibility Study of Flat Joint Method Using High-Tension Bolt Friction Joints in Light-Gauge Steel Structures and Fundamental Study on Resistant Mechanism
AU - Hamada, Nagi
AU - Feng, Jihang
AU - Ito, Takumi
AU - Sakiyama, Natsuhiko
AU - Onishi, Katsunori
AU - Mori, Kenjiro
AU - Hotta, Rikako
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2024.
PY - 2024
Y1 - 2024
N2 - Recently, light-gauge steel structures that can reduce the amount of steel compared to heavy steel structures have attracted more attention. However, there are no detailed guidelines for designing joints in light-gauge steel structures in Japan. To provide the rigid joints in light-gauge steel structures, processing and construction gets complicated, and projections on the flange by jointing with bolts can interfere with the floor slab and finishing materials. In this context, this study proposes the flat joint method, a joint method that has no projections on the flange by frictional bolted jointing at only the beam web and aims to develop a rigid joint without welding. The flat joint method has a frictional steel plate to connect, which transfers stress on the beam to the other one through frictional force. Therefore, the flat joint method follows the mechanical principles of the joint function. A tensile test of the flat beam joint was conducted to reveal the fundamental mechanical properties. It was expected that the flat joint will be a complex stress transfer mechanism for the distribution of cross-sectional stress under bending forces, because of the contact and arrangement of plate and joint elements, and the mechanical relationships due to bearing stress and friction. Additionally, we analyzed findings from this tensile test in detail by using the finite element analysis method. From the results of the tensile test and finite element analysis, evaluation methods for mechanical properties of the flat joint under tensile force were determined.
AB - Recently, light-gauge steel structures that can reduce the amount of steel compared to heavy steel structures have attracted more attention. However, there are no detailed guidelines for designing joints in light-gauge steel structures in Japan. To provide the rigid joints in light-gauge steel structures, processing and construction gets complicated, and projections on the flange by jointing with bolts can interfere with the floor slab and finishing materials. In this context, this study proposes the flat joint method, a joint method that has no projections on the flange by frictional bolted jointing at only the beam web and aims to develop a rigid joint without welding. The flat joint method has a frictional steel plate to connect, which transfers stress on the beam to the other one through frictional force. Therefore, the flat joint method follows the mechanical principles of the joint function. A tensile test of the flat beam joint was conducted to reveal the fundamental mechanical properties. It was expected that the flat joint will be a complex stress transfer mechanism for the distribution of cross-sectional stress under bending forces, because of the contact and arrangement of plate and joint elements, and the mechanical relationships due to bearing stress and friction. Additionally, we analyzed findings from this tensile test in detail by using the finite element analysis method. From the results of the tensile test and finite element analysis, evaluation methods for mechanical properties of the flat joint under tensile force were determined.
KW - FEA
KW - Flat Joint
KW - Friction bolt joint
KW - Light-gauge Steel Structure
KW - Tensile Test
UR - http://www.scopus.com/inward/record.url?scp=85198454349&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-62888-7_72
DO - 10.1007/978-3-031-62888-7_72
M3 - Conference contribution
AN - SCOPUS:85198454349
SN - 9783031628870
T3 - Lecture Notes in Civil Engineering
SP - 830
EP - 843
BT - Proceedings of the 11th International Conference on Behaviour of Steel Structures in Seismic Areas - STESSA 2024 - Volume 2
A2 - Mazzolani, Federico M.
A2 - Piluso, Vincenzo
A2 - Nastri, Elide
A2 - Formisano, Antonio
PB - Springer Science and Business Media Deutschland GmbH
T2 - 11th International Conference on Behaviour of Steel Structures in Seismic Areas, STESSA 2024
Y2 - 8 July 2024 through 10 July 2024
ER -